82801DB Datasheet, PDF (579/587 Pages) Intel Corporation – Intel 82801DB I/O Controller Hub 4 (ICH4)

Register Bit Index
B
Numerics
64_EN 346
64-bit Addressing Capability 434
66 MHz Capable 254, 278, 282, 385, 401, 420,
452, 470, 495
A
A20Gate Pass-Through Enable 406
AC 507
AC ‘97 Cold Reset# 488, 507
AC_SDIN0 Codec Ready 490, 509
AC_SDIN0 Resume Interrupt 489, 509
AC_SDIN0 Resume Interrupt Enable 487, 507
AC_SDIN1 Codec Ready 489, 509
AC_SDIN1 Resume Interrupt 489, 509
AC_SDIN1 Resume Interrupt Enable 487, 507
AC_SDIN2 Codec Ready 488, 508
AC_SDIN2 Interrupt Enable 487, 507
AC_SDIN2 Resume Interrupt 488, 508
AC ’97 Warm Reset 488, 507
AC97_EN 362
AC97_STS 361
ACLINK Shut Off 487, 507
AD3 489, 508
ADDRESS 459
Address Increment/Decrement Select 319
Address of Descriptor Table 398
ADLIB_ACT_STS 368
ADLIB_LPC_EN 309
ADLIB_TRP_EN 369
AFTERG3_EN 348
Alarm Flag 341
Alarm Interrupt Enable 340
Alternate A20 Gate 343
Alternate Access Mode Enable 303
Alternate GPI SMI Enable 367
Alternate GPI SMI Status 367
APIC Data 332
APIC Enable 303
APIC ID 333
APIC Index 332
APM_STS 366
APMC_EN 364
Asynchronous Schedule Enable 436
Asynchronous Schedule Park Capability 434
Asynchronous Schedule Status 438
AUDIO_ACT_STS 368
AUDIO_TRP_EN 369
Autoinitialize Enable 319
Automatic End of Interrupt 327
Automatically Append CRC 462
Auxiliary Current 260, 424, 477
B
BAR Number 426
Base Address 256, 257, 387, 388, 403, 413,
453, 472, 473, 474, 497
Base and Current Address 316
Base and Current Count 316
Base Class Code 255, 386, 402, 453, 471, 496
Binary/BCD Countdown Select 321
BIOS_EN 364
BIOS_STS 366
BIOSWR_STS 373
Bit 1 of slot 12 489, 509
Bit 2 of slot 12 489, 509
Bit 3 of slot 12 489, 509
Bit Clock Stopped 488, 508
Block Data 460
BOOT_STS 374
Buffer Completion Interrupt Status 484, 504
Buffer Descriptor Base Address 482
Buffer Descriptor List Base Address 503
Buffered Mode 327
Bus Master Enable 253, 384, 400, 419, 452,
469, 494
Bus Master IDE Active 398
BUS_ERR 457
Byte Done Status 456
C
Cache Line Size 255
Capabilities 475
Capabilities List 254, 420, 470, 495
Capabilities Pointer 258, 423, 475, 498
Capability ID 259, 428, 477
Cascaded Interrupt Controller IRQ Connection
326
Channel 1 Select 301
Channel 2 Select 301
Channel 3 Select 301
Channel 5 Select 301
Channel 6 Select 301
Intel^® 82801DB ICH4 Datasheet
579